Governor William Richards petitions for pardon – Gregory, Fred, https://drive.google.com/file/d/0B_YiJoTQNoYeUy11Sll1SnREMHM/view?usp=drive_link&resourcekey=0-iP9FeCqkfFCqSIP_FeN-tw. Wyoming State Archives, Wyoming Cultural Resources Division, Wyoming Department of State Parks & Cultural Resources.

Governor William Richards petitions for pardon – Gregory, Fred, https://drive.google.com/file/d/0B_YiJoTQNoYeUy11Sll1SnREMHM/view?usp=drive_link&resourcekey=0-iP9FeCqkfFCqSIP_FeN-tw. Wyoming State Archives, Wyoming Cultural Resources Division, Wyoming Department of State Parks & Cultural Resources. https://wyocomet.wyo.gov/repositories/2/digital_objects/2830 Accessed November 05, 2024.